抄録
We report numerical analysis and experimental observation of strongly localized plasmons guided by a triangular metal wedge. Dispersion and dissipation of such wedge plasmons are analyzed using the finite-difference time-domain algorithm. Experimental observation is conducted by the end-fire excitation and near-field detection of the predicted plasmons on a 40° silver nanowedge. Good agreement with the theoretically predicted propagation distances is demonstrated. Differences between the theoretical and experimental field distribution are explained by insufficient resolution of the near-field optical probe.
本文言語 | English |
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論文番号 | 061106 |
ジャーナル | Applied Physics Letters |
巻 | 87 |
号 | 6 |
DOI | |
出版ステータス | Published - 2005 |
外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学(その他)